ZK-502L Bluetooth Wireless Audio Digital Power Amplifier Module

ZK-502L Bluetooth Wireless Audio Digital Power Amplifier Module(MINI Bluetooth 5.0/DC 5-24V/50Wx2)

Features

• Potentiometer to adjust the volume, with a switch, easy to control the volume, ideal for DIY speakers
• Using copper DC connector, withstand high current, no heat
• Left and right dual channel (stereo)
• Compact size
• Easy to use

Parameters

• Product Name: Mini versio 2X50W Bluetooth digital amplifier board
• Model No.: ZK-502L
• Applicable power supply voltage: 5~24V (9V/12V/15V18V/24V adapters are available, high power recommended high voltage)
• Speaker: 30W~200W, 4Ω, 8Ω
• Number of channels: left and right dual channel (stereo)
• Bluetooth version: 5.0
• Bluetooth transmission distance. 15 meters (no obstruction)
• Protection mechanism: self-recovery overheating protection, self-recovery short circuit protection
• Tip:To have enough audio input and enough power supply voltage/current to have enough output power and higher supply voltage
• The relative power will be larger, and the speakers with different impedance will have different output power. In the case of sufficient voltage and current, the higher the speaker ohm
• The larger the speaker, the smaller the relative sound power, please pay attention!
• Power supply voltage:
  12V — 8 ohm speaker/12W (left channel) + 12W (right channel), 4 ohm speaker/20W+ 20W
  15 —– 8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W
  19V —- 8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W
  24V —- 8Ω/38 + 38W, 4Ω/greater than 50 + 50W

Interface

Using Steps

1,Connect compatible speaker & power supply as wiring diagram shown.
2,Bluetooth Pairing. (LED indicator flashing indicates entering Bluetooth mode; then pairing mode after broadcasts “Beep”. Search and connect the Bluetooth“BT WUZHI”(power amplifier board device name) on your phone, it’ll “Beep” and the LED indicator will keep ON if successful.)
3,Play Music. (Play the music on your phone and the indicator will keep blinking slowly.You can press gear potentiometer on the module to Pause/Play the music, and turn right to increase volume and left to decrease.)
4,There will be a voice prompt if disconnected.

Wiring Diagram